WiFi Technology.ppt

8/10/2019 WiFi Technology.ppt

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PRIYANKA RAO

YASHESH MORKHIA

RUSHABH VORAAKSHAY PATIL

KANCHAN INDALKAR

KIRAN YADAV

835

816

831819

809

838


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Intr!"#t$n

%$&'$ T(#)n*+$(,

%$&'$ Ar#)$t(#t"r(

%$&'$ N(t-r. E*(/(nt,

H- %$&'$ N(t-r. %r.,

%$&'$ N(t-r. T*+$(,

%$&'$ Cn2+"rt$n,

A*$#t$n, %$&'$

%$&'$ S(#"r$t4

A!nt+(, D$,!nt+(, %$&'$


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%$r(*(,, T(#)n*+4 $, n *t(rnt$( t %$r(!T(#)n*+47 -)$#) $, #//n*4 ",(!7 r#nn(#t$n+ !($#(, $n -$r(*(,, /!(

%$&'$ %$r(*(,, '$!(*$t4: $, +(n(r$# t(r/ t)tr((r, t t)( IEEE 80;11 #//"n$#t$n,,tn!r! r %$r(*(,, L#* Ar( N(t-r.,%LAN,:

%$&'$ N(t-r. #nn(#t #/"t(r, t (#) t)(r7 tt)( $nt(rn(t n! t t)( -$r(! n(t-r.


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A(r $n *t( 1999

O(rt(, t 2.4GHzr!$ ,(#tr"/

11 Mbps t)(r(t$#* ,((!: & -$t)$n 30 /

Rn+(4-6 Mbps #t"* ,((!:

100 -150 ((t rn+(

M,t "*r7 L(,t E?(n,$(

Int(r(r(n#( r/ />$*( )n(, n!B*"(tt) !($#(, -)$#) #n r(!"#( t)(trn,/$,,$n ,((!


7/35

Intr!"#(! $n 2001

O(rt(, t 5 GHz *(,, "*r:

54 Mbps t)(r(t$#* ,((!:

15-20 Mbps A#t"* ,((!:

50-75 feet range

Mr( (?(n,$(

Nt #/t$>*( -$t) 80;11>


8/35

Intr!"#(! $n 2003

C/>$n( t)( (t"r( >t) ,tn!r!,

7>:100-150((t rn+(

54 Mbps S((!

2.4 GHz r!$ r(@"(n#$(,C/t$>*( -$t) >


9/35

Intr!"#(! $n 2009

I/r(! n(t-r. r/ 5 M>$t, t 600

M>$t,175 Feet range

300 Mbps - 450 Mbps+ S((!

2.4/5 GHz r!$ r(@"(n#$(,80;11n $, ,t(r t)n 80;11+


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Access !"nt #A$ - The AP is a wireless LANtransceiver or base station that can connect one or manywireless devices simultaneously to the Internet.

%"-F" car&s They accept the wireless signal and relayinformation. They can be internal and

e.g P!"!IA !ard for Laptop and P!I !ard for #es$top P!%

'afeg(ar&s - &irewalls and anti'virus software protectnetwor$s from uninvited users and $eep information secure.


11/35

B,$# #n#(t $, ,/( , %*.$( t*.$(,

A %$&'$ )t,t $, #r(t(! >4 $n,t**$n+ n ##(,,$nt t n $nt(rn(t #nn(#t$n

An ##(,, $nt #t, , >,( ,tt$n%)(n %$&'$ (n>*(! !($#( (n#"nt(r, )t,t t)(

!($#( #n t)(n #nn(#t t t)t n(t-r. -$r(*(,,*4

A ,$n+*( ##(,, $nt #n ,"rt " t 30 ",(r, n!#n "n#t$n -$t)$n rn+( 100 150 ((t $n!r,

n! " t 300 ((t "t!r,Mn4 ##(,, $nt, #n >( #nn(#t(! t (#) t)(r

$ Et)(rn(t #>*(, t #r(t( ,$n+*( *r+( n(t-r.


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AP&>,(! t*+4 Inr,tr"#t"r( M!(:

P((r&t&((r t*+4 A!&)# M!(:

P$nt&t&/"*t$$nt >r$!+( t*+4


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T)( #*$(nt #//"n$#t( t)r"+) A##(,, P$nt

BSA&R' #(r+( r$!(! >4 n AP

ESA&It #n,$,t, ; r /r( BSA

ESA #(** $n#*"!(, 10&15 (r* t **- r/$n+


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AP $, nt r(@"$r(!

C*$(nt !($#(, -$t)$n #(** #n #//"n$#t(!$r(#t*4 -$t) (#) t)(r

It $, ",("* r ,(tt$n+ " -$r(*(,, n(t-r.@"$#.*4 n! (,$*4


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T)$, $, ",(! t #nn(#t LAN $n n( >"$*!$n+ t LAN, $n t)(r >"$*!$n+, ((n $ t)( >"$*!$n+, r(/$*(, rt T)(,( #n!$t$n, r(#($( #*(r *$n( ,$+)t >(t-((n >"$*!$n+, T)( *$n(&&,$+)t rn+(r$(, >,(! n t)( t4( -$r(*(,, >r$!+( n!

nt(nn ",(! , -(** , t)( (n$rn/(nt*#n!$t$n,


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%$r(*(,, t(#)n*+4 !(,nt r(/( n4 *! ,(#"r$t4$,,"(,7 >"t $ntr!"#(, n(- n(, E(,!r$n+

Mn&$n&t)(&/$!!*( tt#., D(n$* S(r$#(


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E,4 t (rr/7 */,t $/,,$>*( t !(t(#t

B4 !("*t7 ((r4t)$n+ $, trn,/$tt(! $n #*(rt(?t

U,(rn/(,7 ,,-r!,7 #nt(nt N ,(#"r$t4 F(r(! >4 t)( trn,/$,,$n /(!$"/

D$F(r(nt t*, $*>*( n t)( $nt(rn(tN(t-r. ,n$F(r,7 rt#* n*4,(r,

P,,-r! #**(#tr,%$t) t)( r$+)t (@"$/(nt7 $t, ,,$>*( t((,!r trG# r/ (- .$*/(t(r, -4


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1 Att#.(r ,(, !$,,,#$t( /(,,+(r/ t)( $#t$/

; T)( $#t$/ ,trt, t*. r n(- ##(,,

$nt7 n! t)( tt#.(r!(rt$,(, )$, -n APn !$F(r(nt #)nn(*7",$n+ t)( r(* AP,MAC !!r(,,

3 T)( tt#.(r #nn(#t,t t)( r(* AP ",$n+$#t$/, MAC !!r(,,


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Att#. n trn,/$,,$n r(@"(#4 ",(! 'r(@"(n#4 //$n+

Nt (r4 t(#)n$#*7 >"t -r.,

Att#. n MAC *4(r S(! !("t)(nt$#t$n !$,,,#$t$n /(,,+(,

#n tr+(t n( ,(#$2# ",(r

Att#., n )$+)(r *4(r rt#* TCPIPrt#*: SYN '*!$n+


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T)( r(@"$r(/(nt, r %$&'$ n(t-r. ,(#"r$t4 #n >(>r.(n !-n $nt t- r$/r4 #/n(nt,=

A"t)(nt$#t$n U,(r A"t)(nt$#t$n S(r(r A"t)(nt$#t$n

Pr$#4


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K(($n+ "n"t)r$(! ",(r, F t)( n(t-r.

U,(r A"t)(nt$#t$n

A"t)(nt$#t$n S(r(r $, ",(!U,(rn/( n! ,,-r!

R$,.= Dt ",(rn/( < ,,-r!: ,(n! >(r( ,(#"r(

#)nn(* (,t>*$,)(!

Prn( t ,,$( ((,!r$n+ >4 tt#.(r

S*"t$n E,t>*$,)$n+ (n#r4t(! #)nn(* >(r( ,(n!$n+

",(rn/( n! ,,-r!


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S(r(r A"t)(nt$#t$n D$+$t* C(rt$2#t( $, ",(!

V*$!t$n !$+$t* #(rt$2#t( ##"r, "t/t$#**4 -$t)$n

#*$(nt ,t-r(


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80;1J A##(,, Cntr*

%$r(*(,, Prt(#t(! A##(,, %PA:


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D(,$+n(! , +(n(r* "r,( n(t-r. ##(,, #ntr* /(#)n$,/

A"t)(nt$#t( (#) #*$(nt #nn(#t(! t AP r %LAN: r ,-$t#) rtr Et)(rn(t:

A"t)(nt$#t$n $, !n( -$t) t)( RADIUS ,(r(r7 -)$#) t(**, t)(##(,, $nt -)(t)(r ##(,, t #ntr**(! rt, ,)"*! >( **-(!r nt AP r#(, t)( ",(r $nt n "n"t)r$(! ,tt(

",(r ,(n! n EAP ,trt /(,,+(

AP r(t"rn n EAP /(,,+( r(@"(,t$n+ t)( ",(r, $!(nt$t4

I!(nt$t4 ,(n! >4 ",(r $, t)(n r-r(! t t)( "t)(nt$#t$n ,(r(r >4 AP A"t)(nt$#t$n ,(r(r "t)(nt$#t( ",(r n! r(t"rn n ##(t r r((#t/(,,+( >#. t t)( AP

I ##(t /(,,+( $, r(t"rn7 t)( AP #)n+(, t)( #*$(nt, ,tt( t"t)r$(! n! nr/* trG# -,


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%PA $, ,(#$2#t$n ,tn!r! >,(!7 $nt(r(r>*( ,(#"r$t4(n)n#(/(nt, t)t ,trn+*4 $n#r(,( t)( *((* !t rt(#t$nn! ##(,, #ntr* r (?$,t$n+ n! "t"r( -$r(*(,, LAN ,4,t(/

U,(r A"t)(nt$#t$n 80;1?

EAP

TKIP T(/r* K(4 Int(+r$t4 Prt#*: (n#r4t$n !4n/$# (n#r4t$n .(4, ,(,,$n >,(!:

N(- 1;8&>$t .(4 (r #.(t .(4 /$?$n+ "n#t$n

U,(, M(,,+( Int(+r$t4 #)(#. En,"r(, !t $nt(+r$t4


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H/(

S/** B",$n(,,(, r SOHO

Lr+( Crrt$n, < C/",(,

H(*t) Cr(

%$r(*(,, ISP %ISP:

Tr(**(r,


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M>$*$t4

E,( In,t**t$n

'*(?$>$*$t4

C,t

R(*$>$*$t4

U,( "n*$#(n,(! rt t)( r!$ ,(#tr"/

R/$n+

S((!


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Int(r(r(n#(

D(+r!t$n $n (rr/n#(

H$+) -(r #n,"/t$n

L$/$t(! rn+(


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WiFi Technology.ppt

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Transcript of WiFi Technology.ppt